The Consciousness Atlas is an interactive web app that visualizes more
than 450 theories of consciousness. It is based on Robert Lawrence
Kuhn's 2024 paper,
"A Landscape of Consciousness". The Atlas maps theories that address phenomenal consciousness - the
subjective feel of experience, such as the redness of red.
What the Atlas is
The Atlas is a visual reference built on Kuhn's taxonomy. It presents
the full set of theories at once so you can explore the field visually
and open any theory to read its entry, like an encyclopedia with
structured entries. Each theory entry shows a concise identity line,
conceptual ground, suggested mechanism, empirical notes, implications,
and sources.
Why this exists
Consciousness is studied across disciplines - neuroscience,
philosophy, and sometimes spiritual or anomalous-state research.
Kuhn's paper collects and organizes hundreds of theories along a
spectrum from most physical to least physical. The Atlas puts that
organization into a visual form so readers, students, and researchers
can quickly see how different positions relate and where each theory
sits on the spectrum.
How it works
Theories are grouped into ten main categories, arranged by their
stance on the physical-to-nonphysical spectrum. Examples of categories
include Materialism, Non-Reductive Physicalism, Functionalism,
Quantum-based theories, Panpsychism, Monism, Dualism, Idealism,
Anomalous States, and Challenge Theories. The app shows the whole map
at once. Click any theory to read its structured entry, which includes
references to canonical sources and named thinkers.
Who it is for
- Students learning philosophy of mind and cognitive science
-
Researchers and lecturers looking for an at-a-glance comparative
resource
-
Journalists and writers who need a quick reference to the range of
positions
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Curious readers who want a clear view of what people mean when they
talk about consciousness
What the Atlas does not do
The Atlas does not endorse or rank theories. It is a visualization and
reference based on Kuhn's taxonomy - collect and present, not judge.
It does not attempt to settle the hard problem of consciousness. It is
a tool for exploration and comparison.
A note from Kuhn
Kuhn explicitly states the project's purpose: "collect and categorize,
not assess and adjudicate." The Consciousness Atlas follows that
approach. The data and structure are derived from Kuhn's paper;
feedback and suggested corrections are welcome, but the app is a
visualization layer on top of Kuhn's work.
Kuhn was not involved in the design or content of the Consciousness
Atlas, other than his original paper, 'A Landscape of Consciousness,'
which is the sole source.
FAQ
What is phenomenal consciousness?
Phenomenal consciousness refers to subjective experience - the
qualitative feel of being aware, like the taste of coffee or the
redness of red.
How many theories does the Atlas include?
The Atlas visualizes over 220 individual theories, grouped into ten
broad categories.
Does the Atlas show which theory is true?
No. The Atlas presents theories neutrally. It is a map, not an
argument for any single position.
Is the Atlas academic?
The Atlas is based on an academic source - Robert Kuhn's 2024 paper,
"A Landscape of Consciousness" - and links to canonical sources
where available.
Summary
The Consciousness Atlas is a straightforward visualization tool: it
presents Kuhn's taxonomy as a single, explorable map and lets users
open individual theory entries to read structured, referenced
summaries. It is designed to make this complex field easier to survey
and to serve as a practical reference.
Materialism › Mind-Brain
Place’s Empirical Identity and the Phenomenological Fallacy
Consciousness as an Empirically Identified Brain Process
U. T. Place argues that conscious experiences (sensations, perceptual appearances, dreams, imagery) are brain processes, in the way lightning is an electrical discharge. He presents this as a contingent scientific hypothesis, and he diagnoses the ‘phenomenological fallacy’, the mistake of treating reports of how things appear as descriptions of private objects that literally have those qualities.
Ullin Thomas Place
What consciousness is
Consciousness is constituted by processes in the brain. The identity is one of composition, discovered empirically, not one of definition or meaning.
Mind and body
Mind-brain identity, restricted to conscious processes. Introspection and neurophysiology are two modes of observation of one event, as visual sighting and instrument readings both pick out lightning.
Mechanism
Two moves: separating the ‘is’ of definition from the ‘is’ of composition, and diagnosing the phenomenological fallacy.
Core claims
- Sentences like ‘consciousness is a brain process’ need no more assert synonymy than ‘this table is an old packing case’.
- Differences in meaning and in method of verification do not show that two descriptions pick out different things.
- The conviction that experience cannot be neural rests on the phenomenological fallacy, which posits an inner screen bearing apparent qualities.
- Identity is stronger than correlation and holds when the neural process explains the subject's introspective reports.
Criticisms
Explaining why a subject reports a green afterimage is not obviously the same as explaining why the neural process has green phenomenal character. Multiple realization in organisms with different nervous systems threatens unrestricted type identity, and species-relative or functional identities answer it only by giving up simple universal mappings.
Implications
- AI consciousness: Uncertain
- Place identifies conscious processes with types of brain process, which makes machine consciousness doubtful unless those types can be individuated more flexibly, a question he left open.
- Survival beyond death: No
- Since conscious episodes are brain processes, they cannot continue once the brain stops.
- Meaning and purpose: Humanistic only
- The view rejects any nonphysical inner domain and treats consciousness as a biological process.
- Virtual immortality: Unlikely
- On a type-identity view, a simulation would reproduce a person's experiences only if it ran the same kinds of brain process.
Related theories
Sources
- Is consciousness a brain process?, U. T. Place (1956)
- The concept of heed, U. T. Place (1954)
- Thirty years on: Is consciousness still a brain process?, U. T. Place (1988)
- Connectionism and the problem of consciousness, U. T. Place (1999)
- Identifying the Mind: Selected Papers of U. T. Place, G. Graham and E. R. Valentine (eds.) (2004)
- The Concept of Mind, Gilbert Ryle (1949)
Explore all theories on the Consciousness Atlas
